<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>帅哥美女走一走</title>
</head>

<body>
    <div id="app">
        <ul>
            <li v-for="(item, index) in list" :key="index">{{item}}</li>
        </ul>
        <button @click="goList()"> go one go</button>
    </div>
    <script src="../vue.js"></script>
    <script>
        let app = new Vue({
            el: '#app',
            data: {
                list: ['帅哥', '美女', '程序猿']
            },
            methods: {
                goList() {
                    this.list.unshift(this.list.pop());
                }

            }
        })
    </script>
</body>

</html>